private Grid Piece()
{
Grid grid = new Grid()
{
HeightRequest = 60,
WidthRequest = 60,
};
if (_piece == cross)
{
BoxView line1 = new BoxView()
{
Color = Color.Red,
HeightRequest = 60,
WidthRequest = 5,
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.Center,
Rotation = 45,
};
BoxView line2 = new BoxView()
{
Color = Color.Red,
HeightRequest = 60,
WidthRequest = 5,
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.Center,
Rotation = 135,
};
grid.Children.Add(line1);
grid.Children.Add(line2);
}
else if (_piece == nought)
{
EllipseView circle = new EllipseView()
{
Color = Color.Blue,
HeightRequest = 60,
WidthRequest = 60,
StrokeWidth = 5,
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.Center
};
grid.Children.Add(circle);
}
return(grid);
}
void NewGame(float width, float height)
{
// The constructor creates the random maze layout
mazeGrid = new MazeGrid(MAZE_HORZ_CHAMBERS, MAZE_VERT_CHAMBERS);
// Initialize borders collection
borders.Clear();
// Create Line2D objects for the border lines of the maze
float cellWidth = width / mazeGrid.Width;
float cellHeight = height / mazeGrid.Height;
int halfWallWidth = WALL_WIDTH / 2;
for (int x = 0; x < mazeGrid.Width; x++)
{
for (int y = 0; y < mazeGrid.Height; y++)
{
MazeCell mazeCell = mazeGrid.Cells[x, y];
Vector2 ll = new Vector2(x * cellWidth, (y + 1) * cellHeight);
Vector2 ul = new Vector2(x * cellWidth, y * cellHeight);
Vector2 ur = new Vector2((x + 1) * cellWidth, y * cellHeight);
Vector2 lr = new Vector2((x + 1) * cellWidth, (y + 1) * cellHeight);
Vector2 right = halfWallWidth * Vector2.UnitX;
Vector2 left = -right;
Vector2 down = halfWallWidth * Vector2.UnitY;
Vector2 up = -down;
if (mazeCell.HasLeft)
{
borders.Add(new Line2D(ll + down, ll + down + right));
borders.Add(new Line2D(ll + down + right, ul + up + right));
borders.Add(new Line2D(ul + up + right, ul + up));
}
if (mazeCell.HasTop)
{
borders.Add(new Line2D(ul + left, ul + left + down));
borders.Add(new Line2D(ul + left + down, ur + right + down));
borders.Add(new Line2D(ur + right + down, ur + right));
}
if (mazeCell.HasRight)
{
borders.Add(new Line2D(ur + up, ur + up + left));
borders.Add(new Line2D(ur + up + left, lr + down + left));
borders.Add(new Line2D(lr + down + left, lr + down));
}
if (mazeCell.HasBottom)
{
borders.Add(new Line2D(lr + right, lr + right + up));
borders.Add(new Line2D(lr + right + up, ll + left + up));
borders.Add(new Line2D(ll + left + up, ll + left));
}
}
}
// Prepare AbsoluteLayout for new children
absoluteLayout.Children.Clear();
// "Draw" the walls of the maze using BoxView
BoxView createBoxView() => new BoxView
{
Color = Color.Green
};
for (int x = 0; x < mazeGrid.Width; x++)
{
for (int y = 0; y < mazeGrid.Height; y++)
{
MazeCell mazeCell = mazeGrid.Cells[x, y];
if (mazeCell.HasLeft)
{
Rectangle rect = new Rectangle(x * cellWidth,
y * cellHeight - halfWallWidth,
halfWallWidth, cellHeight + WALL_WIDTH);
absoluteLayout.Children.Add(createBoxView(), rect);
}
if (mazeCell.HasRight)
{
Rectangle rect = new Rectangle((x + 1) * cellWidth - halfWallWidth,
y * cellHeight - halfWallWidth,
halfWallWidth, cellHeight + WALL_WIDTH);
absoluteLayout.Children.Add(createBoxView(), rect);
}
if (mazeCell.HasTop)
{
Rectangle rect = new Rectangle(x * cellWidth - halfWallWidth,
y * cellHeight,
cellWidth + WALL_WIDTH, halfWallWidth);
absoluteLayout.Children.Add(createBoxView(), rect);
}
if (mazeCell.HasBottom)
{
Rectangle rect = new Rectangle(x * cellWidth - halfWallWidth,
(y + 1) * cellHeight - halfWallWidth,
cellWidth + WALL_WIDTH, halfWallWidth);
absoluteLayout.Children.Add(createBoxView(), rect);
}
}
}
// Randomly position ball in one of the corners
bool isBallLeftCorner = random.Next(2) == 0;
bool isBallTopCorner = random.Next(2) == 0;
// Create the hole first (so Z order is under the ball)
// and position it in the opposite corner from the ball
hole = new EllipseView
{
Color = Color.Black,
WidthRequest = 2 * HOLE_RADIUS,
HeightRequest = 2 * HOLE_RADIUS
};
holePosition = new Vector2((isBallLeftCorner ? 2 * mazeGrid.Width - 1 : 1) * (width / mazeGrid.Width / 2),
(isBallTopCorner ? 2 * mazeGrid.Height - 1 : 1) * (height / mazeGrid.Height / 2));
absoluteLayout.Children.Add(hole, new Point(holePosition.X - HOLE_RADIUS,
holePosition.Y - HOLE_RADIUS));
// Create the ball and set initial position
ball = new EllipseView
{
Color = Color.Red,
WidthRequest = 2 * BALL_RADIUS,
HeightRequest = 2 * BALL_RADIUS
};
ballPosition = new Vector2((isBallLeftCorner ? 1 : 2 * mazeGrid.Width - 1) * (width / mazeGrid.Width / 2),
(isBallTopCorner ? 1 : 2 * mazeGrid.Height - 1) * (height / mazeGrid.Height / 2));
absoluteLayout.Children.Add(ball, new Point(ballPosition.X - BALL_RADIUS,
ballPosition.Y - BALL_RADIUS));
}
public override void Run(ElmSharp.Box parent)
{
var scrollView = new ScrollView(parent)
{
WeightX = 1,
WeightY = 1,
AlignmentY = -1,
AlignmentX = -1,
VerticalScrollBarVisibility = ScrollBarVisibility.Always,
};
scrollView.Show();
var content = new ElmSharp.Box(parent)
{
WeightX = 1,
WeightY = 1,
AlignmentY = -1,
AlignmentX = -1,
};
scrollView.SetScrollCanvas(content);
parent.PackEnd(scrollView);
var ellipseText1 = new ElmSharp.Label(parent)
{
WeightX = 1,
WeightY = 1,
Text = "EllipseView with SolidBrush"
};
ellipseText1.Show();
var ellipse1 = new EllipseView(parent)
{
WeightX = 1,
WeightY = 1,
AlignmentY = -1,
AlignmentX = -1,
Stroke = new SolidColorBrush(Color.Maroon),
StrokeThickness = 5,
Fill = new SolidColorBrush(Color.Lavender),
Aspect = Stretch.Uniform,
};
ellipse1.Show();
content.PackEnd(ellipseText1);
content.PackEnd(ellipse1);
var ellipseText2 = new ElmSharp.Label(parent)
{
WeightX = 1,
WeightY = 1,
Text = "EllipseView with GradientBrush"
};
ellipseText2.Show();
var ellipse2 = new EllipseView(parent)
{
WeightX = 1,
WeightY = 1,
AlignmentY = -1,
AlignmentX = -1,
Stroke = new LinearGradientBrush(new System.Collections.Generic.List <GradientStop>()
{
new GradientStop(Color.Lavender, 0.2f),
new GradientStop(Color.LightSkyBlue, 0.4f),
new GradientStop(Color.LightCyan, 0.6f),
new GradientStop(Color.LightPink, 0.8f),
new GradientStop(Color.YellowGreen, 1.0f),
}),
Fill = new RadialGradientBrush(new System.Collections.Generic.List <GradientStop>()
{
new GradientStop(Color.YellowGreen, 0.2f),
new GradientStop(Color.LightPink, 0.4f),
new GradientStop(Color.LightCyan, 0.6f),
new GradientStop(Color.LightSkyBlue, 0.8f),
new GradientStop(Color.Lavender, 1.0f),
}),
StrokeThickness = 15,
Aspect = Stretch.Fill,
};
ellipse2.Show();
content.PackEnd(ellipseText2);
content.PackEnd(ellipse2);
var ellipseText3 = new ElmSharp.Label(parent)
{
WeightX = 1,
WeightY = 1,
Text = "EllipseView Aspect Test"
};
ellipseText3.Show();
var ellipse3 = new EllipseView(parent)
{
WeightX = 1,
WeightY = 1,
AlignmentY = -1,
AlignmentX = -1,
Stroke = new SolidColorBrush(Color.PaleGoldenrod),
StrokeThickness = 5,
Fill = new SolidColorBrush(Color.MediumPurple),
Aspect = Stretch.Fill
};
ellipse3.Show();
var aspectButton = new Button(parent)
{
Text = "Change Aspect",
WeightX = 0.5,
WeightY = 0.5,
AlignmentY = -1,
AlignmentX = -1,
};
aspectButton.Show();
aspectButton.Clicked += (s, e) =>
{
switch (ellipse3.Aspect)
{
case (Stretch.Fill):
ellipse3.Aspect = Stretch.Uniform;
break;
case (Stretch.Uniform):
ellipse3.Aspect = Stretch.UniformToFill;
break;
case (Stretch.UniformToFill):
ellipse3.Aspect = Stretch.Fill;
break;
}
};
content.PackEnd(ellipseText3);
content.PackEnd(ellipse3);
content.PackEnd(aspectButton);
}
